From an internal Basecamp announcement re: pings/IMs

It's Time To Start Using CSS Custom Properties — Smashing Magazine

bitmanic/font-feature-settings: font-feature-settings() is a Sass mixin for enabling OpenType features via CSS.

Raster—CSS Grid System

Responsive Images · An A List Apart Article

Bidirectional Scrolling is here to save Responsive Design

Easily switch PHP versions in Laravel Valet - Freek Van der Herten's blog on PHP, Laravel and JavaScript

HTMX

Creating Users, Not Addicts – Journey Group – Medium

Supporting Dark Mode in Your Website

Introducing Inspect: Where the file is the design spec | Abstract

Statamic at SPIEGEL Scale (Part 1) - Statamic Blog